In computer networking and computer science, bandwidth, network bandwidth, data bandwidth, or digital bandwidth is a measure of available or consumed data communication resources expressed in bits/second or multiples of it (kilobits/s, megabits/s etc.).

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Tool to monitor bandwidth utilization per traffic (tc) class on linux

Some time in the past, i came across a siple tool that showed live in a 1sec interval, in human readable format, the bandwidth utilization seperated per tc class on your linux server. Unfortunately, i ...
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6answers
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Bandwidth out of control, where to go next

I was wondering if someone could give me a bit of advice. I have just released a site live and it has maxed my bandwidth / space more than what i predicted. Im from Australia so space and bandwidth ...
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740 views

Measuring cumulative network statistics per user or per process

I've been googling for hours -- Under Linux I want to know the cumulative bytes sent and received by user or by process over all ip protocols. The best I've found in my searches is that it's possible ...
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745 views

How can I do bandwidth management using quotas on a Debian Linux based router?

I use a Debian Linux based PC as a router. Now, I want to implement bandwidth management using quotas. By that I mean when a user has reached their quota limit, their bandwidth will be reduced. I've ...
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What could be causing Outrageous Bandwidth Spikes on a VPS(cpanel godaddy), 1200GB in one day?

I have a VPS hosted on Godaddy, managed with cpanel. I've averaged 30-50GB a month, but then it went up to 1200+GB in one day. It appears my server has been compromised. The thing is my website ...
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1answer
66 views

What capacities should have a hosting to support an average of 1000 registered users simultaneously? [closed]

How much RAM, Disk Space, Bandwidth, etc would be needed? It's just and aproximate. I have no idea how to do a real implementation of a web service and I'm not going to, but I have to write a SRS ...
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5answers
289 views

How can I measure precisely the resources consumed by each Web site on my server?

We are having performance issues on our server which may or may not be the inevitable result of high traffic to our sites. We would like to optimize each site for performance so that we can be sure ...
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1answer
84 views

Inspecting http traffic

I'm running a CentOS 5 with plesk 10 and problems with slow website loading, now my provider tells me i'm excedding my bandwith. I've been monitoring the bandwith with iftop and it showed me some ...
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156 views

IMAP , Minimum, Infrastructure/Network/Server required [duplicate]

Possible Duplicate: Can you help me with my capacity planning? As the title sugest i would like your feedback about IMAP accounts, any sugestion experience you have with it would be ...
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5answers
3k views

finding the best network latency between two countries

I know there are many tools to test for bandwidth and latency, but they all rely on having at least one host from which you can run those tests. I wonder whether there's an online source or some ...
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2answers
497 views

How to measure bandwidth within the last 15 minutes?

I would like to log my bandwidth into a database and find out when my windows server 2003 is being used the most. I want to feed the database with the bandwidth passed from the last feed (let's say ...
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1answer
611 views

Bandwith usage from pcap files

I've got a huge pcap file (many GBs) that I just can't load in wireshark. What I need is extracting bandwidth usage information, both total and per-protocol (in both incoming and outgoing direction), ...
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1answer
2k views

Command line speed test

There are several sites that give you decent speedtest metrics (DSLReports, Speakeasy; PhonePower even has additional VoIP-related metrics). I want to get these metrics on a periodic basis. Ideally, I ...
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2answers
1k views

How to find process which uses most bandwidth

How can I find the process which uses most bandwidth on a Linux PC? With iftop it's possible to find which connections produce most bandwidth, but how to find the process?
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1answer
427 views

Monitor network traffic over CentOS router

I have a CentOS 5.7 box configured as a router. Two network cards are attached to this machine, one connected to the Internet and one connected to an unmanaged network switch. The question is, how ...
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4answers
67 views

Loading after a minute

Here is the web site. http://reachourfans.com when i enter the site, it's loading nothing, and after a minute it's beginning loading the site. I've switched off the Update module, and installed it ...
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4answers
764 views

What tools should I use to assess bandwidth for web server farm..?

I'm contemplating moving datacentre and I need to know the size of pipe I'll need in order to get a quote. Currently I'm charged on GBs of traffic per month (currently about 42GB inbound - so ...
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1answer
218 views

Upload throttling in IIS 7

I've got a situation where multiple concurrent file uploads are being executed in a web application. These uploads are of massive files, among several users, and it's choking the system into terrible ...
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3answers
304 views

Server requirement for running an application having huge network traffic

What I am asking is a very common question that comes to any developer's mind when he/she wants to host a server but a precise answer is not easily available. I need to host a server which returns ...
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3answers
1k views

Configure a Linux router for fair bandwidth allocation without unnecessary limiting it

I run a Linux router (more precisely OpenWRT) on an internet connection with very limited bandwidth, around 1 MBit/s downstream and some dozen kBit/s upstream. There are several machines on the net ...
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1answer
279 views

When is directadmin user detail (especially bandwidth) updated? Possible to be online?

I hope it be the right place for asking about Directadmin, cpanel and other moderation web application. (I've deleted my question from pro webmaster site at http://webmasters.stackexchange.com and ...
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1answer
2k views

iperf-like bidirectional bandwidth measurement through NAT

I am using iperf to measure my uplink speed between my home PC behind NAT and a fully accessible root server. It does so using a TCP connection. For whatever reason it seems that iperf can only ...
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246 views

Bandwidth Consumption on VPN + SSL

I need to estimate how much bandwidth (in Kilobytes) I will consume doing a https request (with client ssl authentication) between two servers connected through VPN over Internet. There's no need to ...
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Getting bandwidth spent by user or by rails application on Ubuntu

I'm running multiple rails applications on AWS instance and I need to know how many bandwidth is each application using/wasting. Some of the applications are running with passenger over Apache2 some ...
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2answers
2k views

bandwidth monitoring issue on PfSense router

I have a PfSense router installed , where it has 4 interfaces. one of them is WAN and rest 3 are LAN networks, which have different subnets and IP address ranges. wan interface name = em0 lan ...
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1answer
201 views

What is the reason for variation in colocation pricing? [closed]

I have been doing a lot of research on colocation lately and have gained a lot of understanding in regards to how it all works and the different prices for various parts of colocation. Overall a lot ...
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3answers
4k views

Any freebsd/PfSense realtime bandwidth monitoring tool?

i need to know if there is any Tool (specifically for FreeBSD) , through which i can get the Realtime network traffic usage of any Host/IP , and which should also run on Multiple interfaces as well? i ...
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115 views

How to monitor bandwidth on host which uses bridge-util and virtualization

I am running a debian squeeze box with bridge-util and LXC containers. I guess this is a 2 part request. I would like to know what my total bandwidth usage is I would like to see it broken down by ...
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3answers
976 views

How much bandwidth speed do I need? [closed]

I have a 100 megabyte (MB) file, and I have a 30 megabit/s (Mb) dedicated bandwidth speed on my server. How many people could download this file at the same time, with acceptable speeds? What ...
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1answer
132 views

Difference between peer network levels?

What are the differences between the network peer levels? I've seen peer1 2 and 3 tossed around the web and wondered what the differences were. Thanks!
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1answer
403 views

droping packet on iptables = wasting bandwidth?

recently I do this on my iptables : -A INPUT -p tcp --dst 192.168.0.0/16 -m hashlimit --hashlimit-above 32/sec --hashlimit-mode dstip --hashlimit-name hosts -j DROP it seems that if my client ...
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1answer
1k views

monitor iis vhosts bandwidth usage with cacti

I am trying to monitor how much bandwidth is being used by websites(vhosts) on my iis (7.5) machine. on a per site basis. Is their a cacti plugin or configuration guide that i can use to monitor this. ...
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4answers
507 views

Monitor bandwidth usage of a datacenter

I would like to know what application is best for measuring bandwidth usage in large datacenters. Our company is in the process of setting up a DC which will have around 1000 physical servers. We ...
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2answers
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File transfer - Bandwidth flickering for no reason

We are experiencing file transfer issues. I try to troubleshoot this problem but it is really hard. Here is a screenshot I took while transferring a file from my workstation to another server. The ...
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1answer
140 views

Guaranteed international bandwidth solution?

How plausible is it to transfer large amounts of data consistently via the network? For example, is there a way to guarantee a minimum upload speed of 8Mb/sec from various international sites (Hong ...
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1answer
780 views

Tools to monitor bandwith (outgoing) on my ArchARM NAS/Server?

I have been having some problems with my router last few days, and in the process of narrowing down the problem, I found that while I wasn't using my home network explicitly I was having upto 1GB of ...
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2answers
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Insufficient channel capacity of 1GBit

There is a Caching Server (Varnish): it receives data from Amazon S3 on request, saves it for some time and gives it to the client. We have encountered the problem of insufficient channel capacity of ...
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2answers
204 views

Broadband monitoring tools

We have DSL internet (6 mbps download/600 kbps upload) in our office. We have around 30 users with internet access. I would like to know what is the best way to monitor the bandwidth utilization. I ...
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3answers
459 views

What can I do to lower bandwidth cost on a bandwidth heavy site?

The easiest answer is CDN but I'd like to ask. A friend of mine has a server that is used for mirror downloads. He says he is doing about 10TB of bandwidth a month which shocked me (I wonder if he is ...
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3answers
640 views

Webserver at home: will my DSL line be good enough? [closed]

The evolution of DSL lines and technologies such as FTTH has make me wonder if traditional hosting services could be in danger. If you want to host your own domain, for example for a blog or a ...
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1answer
86 views

When to expand a web server's unshared connection?

We have a 3 mbps by 3 mbps dedicated, unshared pipe that hosts a web server, mail server, and VoIP/web browsing traffic for 8 employees. The web server hosts a few different sites that average about ...
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428 views

Calculating bandwidth math

I think I'm having a pretty fundamental problem in calculating bandwidth math. I work in streaming video and I often have clients asking me the famous question: "How many streams can I push at ...
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4answers
207 views

Need to get server bandwidth usage up to the moment (in bytes)

I am writing a CRON/PHP script that will check the server stats every 5 minutes (CPU/RAM/SSD) and log the info to the database. This way I will be able to see server usage over different periods of ...
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1answer
295 views

Plesk bandwidth monitoring with (Apache/Nginx) reverse-proxy setup

I want to build a reverse-proxy setup for static files using Apache and Nginx. I want to use it for Plesk. Normally, Plesk gets the bandwidth information from the Apache logs. Is it possible to ...
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0answers
338 views

Apache - Very high load/bandwidth and unusual pattern of requests

I am a web developer and have this server that's being used as a development machine of sorts. So, my experience with Apache is that I can fiddle around and get basic stuff done / google stuff to get ...
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1answer
9k views

AWS, Bandwidth and content delivery

My question is about Virtual Machines and delivering their content over the servers connection to the internet. I have an Ec2 windows instance, and that instances network connection appears to be ...
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4answers
323 views

Router for a heavy video streaming dependent network

I have a 50 Mbps WAN link and I use Asus RT-N16 with tomato firmware for NAT. My users view multiple streaming videos. At any given time there would be about 20 streaming videos which are being ...
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1answer
648 views

iftop bandwidth monitor shows rates=0 (but do show connected hosts) on tun0 (ppp)

On my FreeBSD box, working as my LAN's router, I tried using iftop (from ports/net-mgmt) to monitor bandwidth usage. The program works well for monitoring the server's LAN interface-card, but not for ...
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1answer
1k views

IPerf - Reverse test

I'm trying to perform a test using IPerf but in a special case. Usually iperf client send data to iperf server, what I need in this case is the server send data back to the client in the same ...
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2answers
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What's the danger in having a website with many user accounts hosted by FatCow, GoDaddy, etc

I asked this on StackOverflow, but I think it's more appropriate here (plus I got no answer there). I host my websites with FatCow, and generally this isn't a problem since they're small-business ...